﻿Plate 
  12 
  

  

  

  M0^r 
  

  

  

  Tr* 
  

  

  

  W. 
  J. 
  Miller, 
  photo 
  

   Contorted 
  Grenville 
  limestone 
  as 
  seen 
  near 
  the 
  road 
  one 
  and 
  one-half 
  

   miles 
  southeast 
  of 
  Johnsburg. 
  The 
  darker 
  streaks 
  are 
  pyroxenic 
  bands 
  

   which 
  have 
  been 
  badly 
  twisted 
  and 
  drawn 
  out. 
  

  

  